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Finding the Fourth Proportional to 394,560.84, 544,497.94 and 213,276.28

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Solution

The fourth proportional to 394,560.84, 544,497.94 and 213,276.28 is: 294,323.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,560.84 : 544,497.94 = 213,276.28 : x
  2. Step 2: Convert to fraction form
    394,560.84/544,497.94 = 213,276.28/x
  3. Step 3: Cross multiply
    394,560.84x = 544,497.94 × 213,276.28
  4. Step 4: Simplify right side
    394,560.84x = 116,128,495,110.86
  5. Step 5: Solve for x
    x = 116,128,495,110.86/394,560.84
  6. Step 6: Final answer
    x = 294,323.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.